Effects Of Concentration On The Rate Of Reaction

Enzymes catalyse biological reactions ,increasing the rate of chemical reactions
Enzymes have an affect on the structure of chemical transformation (stryer et al , 2011 )
Enzyme substances bind at the active cite which contains amino acid chains.
Without catalysis reactions the process would take place slowly to produce products , enzymes are most effective catalyst (Campbell and Farrell, 2011) .A catalysed reaction is obtained by the production of a complex between e and the reactants (Montgomery et al ., 1990).The reversible reaction can be seen below: E + S ⇄ ES ⇄ EP ⇄ E + P

Inhibitors
Competitive inhibitors bind to the active site of the enzyme and compete with substrate concentration. Competitive inhibitors do not change the vmax velocity because high amounts of substrate can over come competitive inhibitors but rather increase km.
Non – competitive inhibitors cause blockage for enzymatic reactions but allow substrate to bind. Uncompetitive inhibitors don’t bind to free energy but rather to enzyme substrate concentration. Un- competitive inhibitors work more effective with high amounts of substrate concentration (Meisenberg and Simmons , 2011).

by the concentration of starch, or whether the results I got were due to the amounts of solution used. This would make both my results and conclusion invalid and unreliable. I also made sure that the temperature of the water bath was at the correct temperature and I kept on checking the temperature of both my amylase, and starch using a thermometer. I made sure both solutions were at the same temperature at all times throughout my experiments, so that temperature would not have an effect on my results…

relationship between temperature and reactant concentration on the rate of reaction for the hydrolysis of tert-Butyl Chloride, and to determine the validity of the proposed mechanism for the reaction. It was hypothesised that measuring the kinetics of this unimolecular substitution reaction would demonstrate the reaction rate for the hydrolysis of tert-Butyl Chloride utilising acetone as the solvent which should increase with both its increased concentration and temperature, to produce the product tert-Butyl…

The Effect of Activator Concentration on the Rate of Reaction of Fungal Amylase
Aim
Investigate the effect of Activator concentration (Calcium) on the
rate of reaction of enzyme (fungal amylase) using Starch as a
substrate.
Introduction
Enzymes are made of globular proteins and each enzyme molecule is of a
particular complex shape complementary to the substrate, which it
breaks. The shape of the enzyme and its active site is due to the
specific folding…

The Effect Of The Concentration Of A Substance On The Rate Of Reaction
Year 9 Chemistry Assignment Term 3
Introduction
The purpose of this experiment was to measure and interpret the effect of a chemical concentration on a reaction rate. A collision theory is a theory proposed by Max Trautz and William Lewis that states: qualitatively explains how chemical reactions occur and why reaction rates differ for different chemical reactions (Wikipedia, 2015). An example of collision theory is when two…

Summary
This experiment will measure the rate of oxidation of iodide ions by persulphate ions to derive the rate law for the reaction. Starch will be added to the reaction to facilitate the measure of time during the reaction. The reactant solutions will contain (NH4)2SO4 and KI, represented as:
(NH4)2S2O8 + 2KI -> I2 + (NH4)2SO4 + K2SO4
This can be simplified to:
S2O82- + 2I- -> I2 + 2SO42-
These equations can only be carried out and be visible after the iodine has completely…

investigate the effect of enzyme concentration on the rate of reaction
PREDICTION:
An enzyme is a biological catalyst. They speed up the rate of a
reaction however they do not affected themselves whilst doing this,
which is why they are catalysts. Enzymes are made to be specific, this
means that they can have only one substrate that they will work on.
Each enzyme has an active site that is where their own specific
substrate’s molecule will fit into.
The enzymes catalyze chemical reactions
beginning…

The Effect of Different Substrate Concentrations on the Rate of Reaction
My aim is to investigate what happens when concentration of Hydrogen
Peroxide is changed and how it affects the rate of reaction when it is
broken down by the enzyme catalase (H2O2 à 2H2O + O2)
Scientific knowledge.
Enzymes are biological catalysts, regulating the rate at which
chemical reactions take place without the enzyme being altered in the
process.
Enzymes bind temporarily…

OBJECTIVE:
The experiment was carried out to investigate the effects of the increase in the enzyme concentration on the rate of reaction. By using self investigative and experimental skills, the experiment was done in order to determine how the rate of reaction will be altered, whether it will increase, decrease or remain constant when the different concentration of enzymes added.
INTRODUCTION:
Enzymes are produced naturally in plant, animal, and microbial cell. There are thousands of different…

hypothesis of this experiment was that an increase in concentration will increase the rate of reaction by decreasing the time taken for the colour change to occur. Figure 1.1 shows time on the x axis and concentration on the y axis, it can be seen that as [reactant] decreases, time increases.Thus, the results correlate with the hypothesis that an increase in concentration will produce a faster reaction time and subsequently a larger reaction rate - regardless of change in [KIO3] or [Na2S2O5], both…